cislunar
adjective
cis·lu·nar
(ˌ)sis-ˈlü-nər 
: lying between the earth and the moon or the moon's orbit
cislunar space
Examples of cislunar in a Sentence
Recent Examples on the Web
And the area around the Moon, referred to as cislunar space, is very large.
—
Brian Gunter, The Conversation, 30 Oct. 2025
Ultimately, a Ubiquitous Internet will ensure connectivity everywhere across remote villages, open oceans, skies, orbit, cislunar space, and beyond.
—Mallik Tatipamula, IEEE Spectrum, 27 Oct. 2025
The four-person crew is tasked with putting the vessel through its paces in the cislunar environment, and performing several science experiments during their mission.
—Josh Dinner, Space.com, 17 Sep. 2025
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Brian Gunter, The Conversation, 30 Oct. 2025
Ultimately, a Ubiquitous Internet will ensure connectivity everywhere across remote villages, open oceans, skies, orbit, cislunar space, and beyond.
—Mallik Tatipamula, IEEE Spectrum, 27 Oct. 2025
The four-person crew is tasked with putting the vessel through its paces in the cislunar environment, and performing several science experiments during their mission.
—Josh Dinner, Space.com, 17 Sep. 2025
Cite this Entry
“Cislunar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cislunar. Accessed 12 Nov. 2025.
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cislunar
adjective
cis·lu·nar
(ˈ)sis-ˈlü-nər
: lying between the earth and the moon or the moon's orbit
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